148 lines
3.8 KiB
C#
148 lines
3.8 KiB
C#
//
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// System.Web.Configuration.MachineKeyRegistryStorage
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//
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// Authors:
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// Marek Habersack <mhabersack@novell.com>
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//
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// (C) 2007 Novell, Inc
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//
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using Microsoft.Win32;
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namespace System.Web.Configuration
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{
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internal class MachineKeyRegistryStorage
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{
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public enum KeyType
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{
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Validation,
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Encryption
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};
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static string keyEncryption;
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static string keyValidation;
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static MachineKeyRegistryStorage ()
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{
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string appName = AppDomain.CurrentDomain.SetupInformation.ApplicationName;
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if (appName == null)
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return;
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string hash = appName.GetHashCode ().ToString ("x");
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keyEncryption = "software\\mono\\asp.net\\" + Environment.Version.ToString () +
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"\\autogenkeys\\" + hash + "-" + ((int)KeyType.Encryption).ToString ();
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keyValidation = "software\\mono\\asp.net\\" + Environment.Version.ToString () +
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"\\autogenkeys\\" + hash + "-" + ((int)KeyType.Validation).ToString ();
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}
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public static byte[] Retrieve (KeyType kt)
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{
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string key = null;
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switch (kt) {
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case KeyType.Validation:
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key = keyValidation;
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break;
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case KeyType.Encryption:
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key = keyEncryption;
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break;
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default:
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throw new ArgumentException ("Unknown key type.");
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}
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if (key == null)
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return null;
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object o = null;
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try {
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RegistryKey v = OpenRegistryKey (key, false);
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o = v.GetValue ("AutoGenKey", null);
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} catch (Exception) {
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return null;
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}
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if (o == null || o.GetType () != typeof (byte[]))
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return null;
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return (byte[]) o;
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}
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static RegistryKey OpenRegistryKey (string path, bool write)
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{
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RegistryKey ret, tmp;
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string[] keys = path.Split ('\\');
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int klen = keys.Length;
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ret = Registry.CurrentUser;
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for (int i = 0; i < klen; i++) {
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tmp = ret.OpenSubKey (keys [i], true);
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if (tmp == null) {
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if (!write)
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return null;
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tmp = ret.CreateSubKey (keys [i]);
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}
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ret = tmp;
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}
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return ret;
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}
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public static void Store (byte[] buf, KeyType kt)
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{
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if (buf == null)
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return;
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string key = null;
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switch (kt) {
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case KeyType.Validation:
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key = keyValidation;
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break;
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case KeyType.Encryption:
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key = keyEncryption;
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break;
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default:
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throw new ArgumentException ("Unknown key type.");
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}
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if (key == null)
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return;
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try {
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using (RegistryKey rk = OpenRegistryKey (key, true)) {
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rk.SetValue ("AutoGenKey", buf, RegistryValueKind.Binary);
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rk.SetValue ("AutoGenKeyCreationTime", DateTime.Now.Ticks, RegistryValueKind.QWord);
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rk.SetValue ("AutoGenKeyFormat", 2, RegistryValueKind.DWord);
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rk.Flush (); // we want it synchronous
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}
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} catch (Exception ex) {
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Console.Error.WriteLine ("(info) Auto generated encryption keys not saved: {0}", ex);
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}
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}
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}
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}
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